Article (Périodiques scientifiques)
Effect of Cell Age and Membrane Rigidity on Red Blood Cell Shape in Capillary Flow
Nouaman, Mohammed; Darras, Alexis; John, Thomas et al.
2023In Cells, 12 (11), p. 1529
Peer reviewed vérifié par ORBi
 

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Mots-clés :
cell shape; density separation; diamide; erythrocyte; membrane rigidity; microcirculation; microfluidics; red blood cell senescence; red blood cells
Résumé :
[en] Blood flow in the microcirculatory system is crucially affected by intrinsic red blood cell (RBC) properties, such as their deformability. In the smallest vessels of this network, RBCs adapt their shapes to the flow conditions. Although it is known that the age of RBCs modifies their physical properties, such as increased cytosol viscosity and altered viscoelastic membrane properties, the evolution of their shape-adapting abilities during senescence remains unclear. In this study, we investigated the effect of RBC properties on the microcapillary in vitro flow behavior and their characteristic shapes in microfluidic channels. For this, we fractioned RBCs from healthy donors according to their age. Moreover, the membranes of fresh RBCs were chemically rigidified using diamide to study the effect of isolated graded-membrane rigidity. Our results show that a fraction of stable, asymmetric, off-centered slipper-like cells at high velocities decreases with increasing age or diamide concentration. However, while old cells form an enhanced number of stable symmetric croissants at the channel centerline, this shape class is suppressed for purely rigidified cells with diamide. Our study provides further knowledge about the distinct effects of age-related changes of intrinsic cell properties on the single-cell flow behavior of RBCs in confined flows due to inter-cellular age-related cell heterogeneity.
Disciplines :
Physique
Auteur, co-auteur :
Nouaman, Mohammed
Darras, Alexis
John, Thomas
Simionato, Greta
Rab, Minke A. E.
van Wijk, Richard
Laschke, Matthias W.
Kaestner, Lars
WAGNER, Christian  ;  University of Luxembourg
Recktenwald, Steffen M.
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Effect of Cell Age and Membrane Rigidity on Red Blood Cell Shape in Capillary Flow
Date de publication/diffusion :
janvier 2023
Titre du périodique :
Cells
eISSN :
2073-4409
Maison d'édition :
Multidisciplinary Digital Publishing Institute
Volume/Tome :
12
Fascicule/Saison :
11
Pagination :
1529
Peer reviewed :
Peer reviewed vérifié par ORBi
Disponible sur ORBilu :
depuis le 23 décembre 2023

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citations Scopus®
 
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citations Scopus®
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citations OpenAlex
 
12

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